1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Mike Karels at Berkeley Software Design, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 37 * $FreeBSD: src/sys/sys/sysctl.h,v 1.81.2.10 2003/05/01 22:48:09 trhodes Exp $ 38 */ 39 40 #ifndef _SYS_SYSCTL_H_ 41 #define _SYS_SYSCTL_H_ 42 43 #include <sys/_posix.h> 44 #include <sys/queue.h> 45 46 /* 47 * Definitions for sysctl call. The sysctl call uses a hierarchical name 48 * for objects that can be examined or modified. The name is expressed as 49 * a sequence of integers. Like a file path name, the meaning of each 50 * component depends on its place in the hierarchy. The top-level and kern 51 * identifiers are defined here, and other identifiers are defined in the 52 * respective subsystem header files. 53 */ 54 55 #define CTL_MAXNAME 12 /* largest number of components supported */ 56 57 /* 58 * Each subsystem defined by sysctl defines a list of variables 59 * for that subsystem. Each name is either a node with further 60 * levels defined below it, or it is a leaf of some particular 61 * type given below. Each sysctl level defines a set of name/type 62 * pairs to be used by sysctl(1) in manipulating the subsystem. 63 */ 64 struct ctlname { 65 char *ctl_name; /* subsystem name */ 66 int ctl_type; /* type of name */ 67 }; 68 69 #define CTLTYPE 0xf /* Mask for the type */ 70 #define CTLTYPE_NODE 1 /* name is a node */ 71 #define CTLTYPE_INT 2 /* name describes an integer */ 72 #define CTLTYPE_STRING 3 /* name describes a string */ 73 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 74 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 75 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 76 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 77 #define CTLTYPE_LONG 7 /* name describes a long */ 78 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 79 80 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 81 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 82 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 83 #define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */ 84 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 85 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 86 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 87 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 88 89 /* 90 * USE THIS instead of a hardwired number from the categories below 91 * to get dynamically assigned sysctl entries using the linker-set 92 * technology. This is the way nearly all new sysctl variables should 93 * be implemented. 94 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 95 */ 96 #define OID_AUTO (-1) 97 98 #ifdef _KERNEL 99 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \ 100 struct sysctl_req *req 101 102 /* 103 * This describes the access space for a sysctl request. This is needed 104 * so that we can use the interface from the kernel or from user-space. 105 */ 106 struct sysctl_req { 107 struct proc *p; 108 int lock; 109 void *oldptr; 110 size_t oldlen; 111 size_t oldidx; 112 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 113 void *newptr; 114 size_t newlen; 115 size_t newidx; 116 int (*newfunc)(struct sysctl_req *, void *, size_t); 117 }; 118 119 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 120 121 /* 122 * This describes one "oid" in the MIB tree. Potentially more nodes can 123 * be hidden behind it, expanded by the handler. 124 */ 125 struct sysctl_oid { 126 struct sysctl_oid_list *oid_parent; 127 SLIST_ENTRY(sysctl_oid) oid_link; 128 int oid_number; 129 int oid_kind; 130 void *oid_arg1; 131 int oid_arg2; 132 const char *oid_name; 133 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 134 const char *oid_fmt; 135 int oid_refcnt; 136 const char *oid_descr; 137 }; 138 139 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 140 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 141 142 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 143 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 144 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS); 145 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 146 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 147 148 /* 149 * These functions are used to add/remove an oid from the mib. 150 */ 151 void sysctl_register_oid(struct sysctl_oid *oidp); 152 void sysctl_unregister_oid(struct sysctl_oid *oidp); 153 154 /* Declare a static oid to allow child oids to be added to it. */ 155 #define SYSCTL_DECL(name) \ 156 extern struct sysctl_oid_list sysctl_##name##_children 157 158 /* Hide these in macros */ 159 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \ 160 (oid_ptr)->oid_arg1 161 #define SYSCTL_STATIC_CHILDREN(oid_name) \ 162 (&sysctl_##oid_name##_children) 163 164 /* === Structs and macros related to context handling === */ 165 166 /* All dynamically created sysctls can be tracked in a context list. */ 167 struct sysctl_ctx_entry { 168 struct sysctl_oid *entry; 169 TAILQ_ENTRY(sysctl_ctx_entry) link; 170 }; 171 172 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 173 174 /* This constructs a "raw" MIB oid. */ 175 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 176 static struct sysctl_oid sysctl__##parent##_##name = { \ 177 &sysctl_##parent##_children, { 0 }, \ 178 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \ 179 DATA_SET(sysctl_set, sysctl__##parent##_##name); 180 181 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 182 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr); 183 184 /* This constructs a node from which other oids can hang. */ 185 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 186 struct sysctl_oid_list sysctl_##parent##_##name##_children; \ 187 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \ 188 (void*)&sysctl_##parent##_##name##_children, 0, handler, \ 189 "N", descr); 190 191 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 192 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \ 193 0, 0, handler, "N", descr); 194 195 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 196 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 197 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \ 198 arg, len, sysctl_handle_string, "A", descr) 199 200 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 201 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \ 202 arg, len, sysctl_handle_string, "A", descr); 203 204 /* Oid for an int. If ptr is NULL, val is returned. */ 205 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 206 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \ 207 ptr, val, sysctl_handle_int, "I", descr) 208 209 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 210 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \ 211 ptr, val, sysctl_handle_int, "I", descr); 212 213 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 214 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 215 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \ 216 ptr, val, sysctl_handle_int, "IU", descr) 217 218 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 219 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \ 220 ptr, val, sysctl_handle_int, "IU", descr); 221 222 /* Oid for a long. The pointer must be non NULL. */ 223 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 224 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \ 225 ptr, val, sysctl_handle_long, "L", descr) 226 227 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 228 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \ 229 ptr, 0, sysctl_handle_long, "L", descr); 230 231 /* Oid for a long. The pointer must be non NULL. */ 232 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 233 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \ 234 ptr, val, sysctl_handle_long, "LU", descr) 235 236 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 237 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \ 238 ptr, 0, sysctl_handle_long, "LU", descr); 239 240 /* Oid for an opaque object. Specified by a pointer and a length. */ 241 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 242 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 243 ptr, len, sysctl_handle_opaque, fmt, descr) 244 245 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\ 246 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 247 ptr, len, sysctl_handle_opaque, fmt, descr); 248 249 /* Oid for a struct. Specified by a pointer and a type. */ 250 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 251 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \ 252 ptr, sizeof(struct type), sysctl_handle_opaque, \ 253 "S," #type, descr) 254 255 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 256 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \ 257 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr); 258 259 /* Oid for a procedure. Specified by a pointer and an arg. */ 260 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 261 SYSCTL_OID(parent, nbr, name, access, \ 262 ptr, arg, handler, fmt, descr) 263 264 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 265 sysctl_add_oid(ctx, parent, nbr, name, access, \ 266 ptr, arg, handler, fmt, descr); 267 268 #endif /* _KERNEL */ 269 270 /* 271 * Top-level identifiers 272 */ 273 #define CTL_UNSPEC 0 /* unused */ 274 #define CTL_KERN 1 /* "high kernel": proc, limits */ 275 #define CTL_VM 2 /* virtual memory */ 276 #define CTL_VFS 3 /* file system, mount type is next */ 277 #define CTL_NET 4 /* network, see socket.h */ 278 #define CTL_DEBUG 5 /* debugging parameters */ 279 #define CTL_HW 6 /* generic cpu/io */ 280 #define CTL_MACHDEP 7 /* machine dependent */ 281 #define CTL_USER 8 /* user-level */ 282 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 283 #define CTL_MAXID 10 /* number of valid top-level ids */ 284 285 #define CTL_NAMES { \ 286 { 0, 0 }, \ 287 { "kern", CTLTYPE_NODE }, \ 288 { "vm", CTLTYPE_NODE }, \ 289 { "vfs", CTLTYPE_NODE }, \ 290 { "net", CTLTYPE_NODE }, \ 291 { "debug", CTLTYPE_NODE }, \ 292 { "hw", CTLTYPE_NODE }, \ 293 { "machdep", CTLTYPE_NODE }, \ 294 { "user", CTLTYPE_NODE }, \ 295 { "p1003_1b", CTLTYPE_NODE }, \ 296 } 297 298 /* 299 * CTL_KERN identifiers 300 */ 301 #define KERN_OSTYPE 1 /* string: system version */ 302 #define KERN_OSRELEASE 2 /* string: system release */ 303 #define KERN_OSREV 3 /* int: system revision */ 304 #define KERN_VERSION 4 /* string: compile time info */ 305 #define KERN_MAXVNODES 5 /* int: max vnodes */ 306 #define KERN_MAXPROC 6 /* int: max processes */ 307 #define KERN_MAXFILES 7 /* int: max open files */ 308 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 309 #define KERN_SECURELVL 9 /* int: system security level */ 310 #define KERN_HOSTNAME 10 /* string: hostname */ 311 #define KERN_HOSTID 11 /* int: host identifier */ 312 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 313 #define KERN_VNODE 13 /* struct: vnode structures */ 314 #define KERN_PROC 14 /* struct: process entries */ 315 #define KERN_FILE 15 /* struct: file entries */ 316 #define KERN_PROF 16 /* node: kernel profiling info */ 317 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 318 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 319 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 320 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 321 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 322 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 323 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 324 #define KERN_OSRELDATE 24 /* int: OS release date */ 325 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 326 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 327 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 328 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 329 #define KERN_DUMPDEV 29 /* dev_t: device to dump on */ 330 #define KERN_IPC 30 /* node: anything related to IPC */ 331 #define KERN_DUMMY 31 /* unused */ 332 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 333 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 334 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 335 #define KERN_MAXID 35 /* number of valid kern ids */ 336 337 #define CTL_KERN_NAMES { \ 338 { 0, 0 }, \ 339 { "ostype", CTLTYPE_STRING }, \ 340 { "osrelease", CTLTYPE_STRING }, \ 341 { "osrevision", CTLTYPE_INT }, \ 342 { "version", CTLTYPE_STRING }, \ 343 { "maxvnodes", CTLTYPE_INT }, \ 344 { "maxproc", CTLTYPE_INT }, \ 345 { "maxfiles", CTLTYPE_INT }, \ 346 { "argmax", CTLTYPE_INT }, \ 347 { "securelevel", CTLTYPE_INT }, \ 348 { "hostname", CTLTYPE_STRING }, \ 349 { "hostid", CTLTYPE_UINT }, \ 350 { "clockrate", CTLTYPE_STRUCT }, \ 351 { "vnode", CTLTYPE_STRUCT }, \ 352 { "proc", CTLTYPE_STRUCT }, \ 353 { "file", CTLTYPE_STRUCT }, \ 354 { "profiling", CTLTYPE_NODE }, \ 355 { "posix1version", CTLTYPE_INT }, \ 356 { "ngroups", CTLTYPE_INT }, \ 357 { "job_control", CTLTYPE_INT }, \ 358 { "saved_ids", CTLTYPE_INT }, \ 359 { "boottime", CTLTYPE_STRUCT }, \ 360 { "nisdomainname", CTLTYPE_STRING }, \ 361 { "update", CTLTYPE_INT }, \ 362 { "osreldate", CTLTYPE_INT }, \ 363 { "ntp_pll", CTLTYPE_NODE }, \ 364 { "bootfile", CTLTYPE_STRING }, \ 365 { "maxfilesperproc", CTLTYPE_INT }, \ 366 { "maxprocperuid", CTLTYPE_INT }, \ 367 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \ 368 { "ipc", CTLTYPE_NODE }, \ 369 { "dummy", CTLTYPE_INT }, \ 370 { "ps_strings", CTLTYPE_INT }, \ 371 { "usrstack", CTLTYPE_INT }, \ 372 { "logsigexit", CTLTYPE_INT }, \ 373 } 374 375 /* 376 * CTL_VFS identifiers 377 */ 378 #define CTL_VFS_NAMES { \ 379 { "vfsconf", CTLTYPE_STRUCT }, \ 380 } 381 382 /* 383 * KERN_PROC subtypes 384 */ 385 #define KERN_PROC_ALL 0 /* everything */ 386 #define KERN_PROC_PID 1 /* by process id */ 387 #define KERN_PROC_PGRP 2 /* by process group id */ 388 #define KERN_PROC_SESSION 3 /* by session of pid */ 389 #define KERN_PROC_TTY 4 /* by controlling tty */ 390 #define KERN_PROC_UID 5 /* by effective uid */ 391 #define KERN_PROC_RUID 6 /* by real uid */ 392 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 393 394 /* 395 * KERN_IPC identifiers 396 */ 397 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 398 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 399 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 400 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 401 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 402 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 403 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 404 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */ 405 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */ 406 407 /* 408 * CTL_HW identifiers 409 */ 410 #define HW_MACHINE 1 /* string: machine class */ 411 #define HW_MODEL 2 /* string: specific machine model */ 412 #define HW_NCPU 3 /* int: number of cpus */ 413 #define HW_BYTEORDER 4 /* int: machine byte order */ 414 #define HW_PHYSMEM 5 /* int: total memory */ 415 #define HW_USERMEM 6 /* int: non-kernel memory */ 416 #define HW_PAGESIZE 7 /* int: software page size */ 417 #define HW_DISKNAMES 8 /* strings: disk drive names */ 418 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 419 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 420 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 421 #define HW_MAXID 12 /* number of valid hw ids */ 422 423 #define CTL_HW_NAMES { \ 424 { 0, 0 }, \ 425 { "machine", CTLTYPE_STRING }, \ 426 { "model", CTLTYPE_STRING }, \ 427 { "ncpu", CTLTYPE_INT }, \ 428 { "byteorder", CTLTYPE_INT }, \ 429 { "physmem", CTLTYPE_UINT }, \ 430 { "usermem", CTLTYPE_UINT }, \ 431 { "pagesize", CTLTYPE_INT }, \ 432 { "disknames", CTLTYPE_STRUCT }, \ 433 { "diskstats", CTLTYPE_STRUCT }, \ 434 { "floatingpoint", CTLTYPE_INT }, \ 435 } 436 437 /* 438 * CTL_USER definitions 439 */ 440 #define USER_CS_PATH 1 /* string: _CS_PATH */ 441 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 442 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 443 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 444 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 445 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 446 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 447 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 448 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 449 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 450 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 451 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 452 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 453 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 454 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 455 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 456 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 457 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 458 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 459 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 460 #define USER_MAXID 21 /* number of valid user ids */ 461 462 #define CTL_USER_NAMES { \ 463 { 0, 0 }, \ 464 { "cs_path", CTLTYPE_STRING }, \ 465 { "bc_base_max", CTLTYPE_INT }, \ 466 { "bc_dim_max", CTLTYPE_INT }, \ 467 { "bc_scale_max", CTLTYPE_INT }, \ 468 { "bc_string_max", CTLTYPE_INT }, \ 469 { "coll_weights_max", CTLTYPE_INT }, \ 470 { "expr_nest_max", CTLTYPE_INT }, \ 471 { "line_max", CTLTYPE_INT }, \ 472 { "re_dup_max", CTLTYPE_INT }, \ 473 { "posix2_version", CTLTYPE_INT }, \ 474 { "posix2_c_bind", CTLTYPE_INT }, \ 475 { "posix2_c_dev", CTLTYPE_INT }, \ 476 { "posix2_char_term", CTLTYPE_INT }, \ 477 { "posix2_fort_dev", CTLTYPE_INT }, \ 478 { "posix2_fort_run", CTLTYPE_INT }, \ 479 { "posix2_localedef", CTLTYPE_INT }, \ 480 { "posix2_sw_dev", CTLTYPE_INT }, \ 481 { "posix2_upe", CTLTYPE_INT }, \ 482 { "stream_max", CTLTYPE_INT }, \ 483 { "tzname_max", CTLTYPE_INT }, \ 484 } 485 486 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 487 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 488 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 489 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 490 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 491 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 492 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 493 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 494 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 495 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 496 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 497 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 498 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 499 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 500 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 501 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 502 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 503 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 504 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 505 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 506 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 507 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 508 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 509 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 510 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 511 512 #define CTL_P1003_1B_MAXID 26 513 514 #define CTL_P1003_1B_NAMES { \ 515 { 0, 0 }, \ 516 { "asynchronous_io", CTLTYPE_INT }, \ 517 { "mapped_files", CTLTYPE_INT }, \ 518 { "memlock", CTLTYPE_INT }, \ 519 { "memlock_range", CTLTYPE_INT }, \ 520 { "memory_protection", CTLTYPE_INT }, \ 521 { "message_passing", CTLTYPE_INT }, \ 522 { "prioritized_io", CTLTYPE_INT }, \ 523 { "priority_scheduling", CTLTYPE_INT }, \ 524 { "realtime_signals", CTLTYPE_INT }, \ 525 { "semaphores", CTLTYPE_INT }, \ 526 { "fsync", CTLTYPE_INT }, \ 527 { "shared_memory_objects", CTLTYPE_INT }, \ 528 { "synchronized_io", CTLTYPE_INT }, \ 529 { "timers", CTLTYPE_INT }, \ 530 { "aio_listio_max", CTLTYPE_INT }, \ 531 { "aio_max", CTLTYPE_INT }, \ 532 { "aio_prio_delta_max", CTLTYPE_INT }, \ 533 { "delaytimer_max", CTLTYPE_INT }, \ 534 { "mq_open_max", CTLTYPE_INT }, \ 535 { "pagesize", CTLTYPE_INT }, \ 536 { "rtsig_max", CTLTYPE_INT }, \ 537 { "nsems_max", CTLTYPE_INT }, \ 538 { "sem_value_max", CTLTYPE_INT }, \ 539 { "sigqueue_max", CTLTYPE_INT }, \ 540 { "timer_max", CTLTYPE_INT }, \ 541 } 542 543 #ifdef _KERNEL 544 545 /* 546 * Declare some common oids. 547 */ 548 extern struct sysctl_oid_list sysctl__children; 549 SYSCTL_DECL(_kern); 550 SYSCTL_DECL(_sysctl); 551 SYSCTL_DECL(_vm); 552 SYSCTL_DECL(_vfs); 553 SYSCTL_DECL(_net); 554 SYSCTL_DECL(_debug); 555 SYSCTL_DECL(_hw); 556 SYSCTL_DECL(_machdep); 557 SYSCTL_DECL(_user); 558 SYSCTL_DECL(_compat); 559 560 extern char machine[]; 561 extern char osrelease[]; 562 extern char ostype[]; 563 564 struct linker_set; 565 566 /* Dynamic oid handling */ 567 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 568 struct sysctl_oid_list *parent, int nbr, const char *name, 569 int kind, void *arg1, int arg2, 570 int (*handler) (SYSCTL_HANDLER_ARGS), 571 const char *fmt, const char *descr); 572 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 573 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 574 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 575 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 576 struct sysctl_oid *oidp); 577 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 578 struct sysctl_oid *oidp); 579 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 580 struct sysctl_oid *oidp); 581 582 /* Linker set based oid handling */ 583 void sysctl_register_set(struct linker_set *lsp); 584 void sysctl_unregister_set(struct linker_set *lsp); 585 586 int kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old, 587 size_t *oldlenp, void *new, size_t newlen, 588 size_t *retval); 589 int kernel_sysctlbyname(struct proc *p, char *name, 590 void *old, size_t *oldlenp, void *new, size_t newlen, 591 size_t *retval); 592 int userland_sysctl(struct proc *p, int *name, u_int namelen, void *old, 593 size_t *oldlenp, int inkernel, void *new, size_t newlen, 594 size_t *retval); 595 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 596 int *nindx, struct sysctl_req *req); 597 598 #else /* !_KERNEL */ 599 #include <sys/cdefs.h> 600 601 __BEGIN_DECLS 602 int sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 603 int sysctlbyname __P((const char *, void *, size_t *, void *, size_t)); 604 int sysctlnametomib __P((const char *, int *, size_t *)); 605 __END_DECLS 606 #endif /* _KERNEL */ 607 608 #endif /* !_SYS_SYSCTL_H_ */ 609